#include <Arduino.h>


/**
*  单个LED，闪烁LED
*/

int LED = 25;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");
  // 设置引脚为输出模式
  pinMode(LED, OUTPUT);
  // 点亮LED
  // digitalWrite(LED, HIGH);
}

void loop() {
  // 点亮LED
  digitalWrite(LED, HIGH);
  // put your main code here, to run repeatedly:
  delay(500); // this speeds up the simulation
  // 熄灭LED
  digitalWrite(LED, LOW);
  delay(500);
  

}
